Brief Communication: Further summer speedup of Jakobshavn Isbræ
We have extended the record of flow speed on Jakobshavn Isbræ through the summer of 2013. These new data reveal large seasonal speedups, 30 to 50% greater than previous summers. At a point a few kilometres inland from the terminus, the mean annual speed for 2012 is nearly three times as great as tha...
Published in: | The Cryosphere |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2014
|
Subjects: | |
Online Access: | https://doi.org/10.5194/tc-8-209-2014 http://www.the-cryosphere.net/8/209/2014/tc-8-209-2014.pdf https://doaj.org/article/06a181843e834498bf61d9f500fb3b7d |
id |
fttriple:oai:gotriple.eu:oai:doaj.org/article:06a181843e834498bf61d9f500fb3b7d |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:oai:doaj.org/article:06a181843e834498bf61d9f500fb3b7d 2023-05-15T16:56:51+02:00 Brief Communication: Further summer speedup of Jakobshavn Isbræ I. Joughin B. E. Smith D. E. Shean D. Floricioiu 2014-02-01 https://doi.org/10.5194/tc-8-209-2014 http://www.the-cryosphere.net/8/209/2014/tc-8-209-2014.pdf https://doaj.org/article/06a181843e834498bf61d9f500fb3b7d en eng Copernicus Publications 1994-0416 1994-0424 doi:10.5194/tc-8-209-2014 http://www.the-cryosphere.net/8/209/2014/tc-8-209-2014.pdf https://doaj.org/article/06a181843e834498bf61d9f500fb3b7d undefined The Cryosphere, Vol 8, Iss 1, Pp 209-214 (2014) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2014 fttriple https://doi.org/10.5194/tc-8-209-2014 2023-01-22T19:30:35Z We have extended the record of flow speed on Jakobshavn Isbræ through the summer of 2013. These new data reveal large seasonal speedups, 30 to 50% greater than previous summers. At a point a few kilometres inland from the terminus, the mean annual speed for 2012 is nearly three times as great as that in the mid-1990s, while the peak summer speeds are more than a factor of four greater. These speeds were achieved as the glacier terminus appears to have retreated to the bottom of an over-deepened basin with a depth of ~ 1300 m below sea level. The terminus is likely to reach the deepest section of the trough within a few decades, after which it could rapidly retreat to the shallower regions ~ 50 km farther upstream, potentially by the end of this century. Article in Journal/Newspaper Jakobshavn Jakobshavn isbræ The Cryosphere Unknown Jakobshavn Isbræ ENVELOPE(-49.917,-49.917,69.167,69.167) The Cryosphere 8 1 209 214 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir I. Joughin B. E. Smith D. E. Shean D. Floricioiu Brief Communication: Further summer speedup of Jakobshavn Isbræ |
topic_facet |
geo envir |
description |
We have extended the record of flow speed on Jakobshavn Isbræ through the summer of 2013. These new data reveal large seasonal speedups, 30 to 50% greater than previous summers. At a point a few kilometres inland from the terminus, the mean annual speed for 2012 is nearly three times as great as that in the mid-1990s, while the peak summer speeds are more than a factor of four greater. These speeds were achieved as the glacier terminus appears to have retreated to the bottom of an over-deepened basin with a depth of ~ 1300 m below sea level. The terminus is likely to reach the deepest section of the trough within a few decades, after which it could rapidly retreat to the shallower regions ~ 50 km farther upstream, potentially by the end of this century. |
format |
Article in Journal/Newspaper |
author |
I. Joughin B. E. Smith D. E. Shean D. Floricioiu |
author_facet |
I. Joughin B. E. Smith D. E. Shean D. Floricioiu |
author_sort |
I. Joughin |
title |
Brief Communication: Further summer speedup of Jakobshavn Isbræ |
title_short |
Brief Communication: Further summer speedup of Jakobshavn Isbræ |
title_full |
Brief Communication: Further summer speedup of Jakobshavn Isbræ |
title_fullStr |
Brief Communication: Further summer speedup of Jakobshavn Isbræ |
title_full_unstemmed |
Brief Communication: Further summer speedup of Jakobshavn Isbræ |
title_sort |
brief communication: further summer speedup of jakobshavn isbræ |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/tc-8-209-2014 http://www.the-cryosphere.net/8/209/2014/tc-8-209-2014.pdf https://doaj.org/article/06a181843e834498bf61d9f500fb3b7d |
long_lat |
ENVELOPE(-49.917,-49.917,69.167,69.167) |
geographic |
Jakobshavn Isbræ |
geographic_facet |
Jakobshavn Isbræ |
genre |
Jakobshavn Jakobshavn isbræ The Cryosphere |
genre_facet |
Jakobshavn Jakobshavn isbræ The Cryosphere |
op_source |
The Cryosphere, Vol 8, Iss 1, Pp 209-214 (2014) |
op_relation |
1994-0416 1994-0424 doi:10.5194/tc-8-209-2014 http://www.the-cryosphere.net/8/209/2014/tc-8-209-2014.pdf https://doaj.org/article/06a181843e834498bf61d9f500fb3b7d |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-8-209-2014 |
container_title |
The Cryosphere |
container_volume |
8 |
container_issue |
1 |
container_start_page |
209 |
op_container_end_page |
214 |
_version_ |
1766048033171046400 |